GF options here are:
GF Mac & Cheese (frozen),
GF Lasagna (frozen),
pre-packaged GF blueberry muffin,
pre-packaged GF brownie.
I tried the Mac & Cheese and the brownie. It takes 10 minutes for the entrées to be defrosted and cooked, but was really nice that I didn't have to leave the park to eat! Mac was pretty good, nice to have something warm. Brownie wasn't good at room temperature, but was much better after being heated for 30 seconds in the microwave (they have one in the Cafe that you can use).
— Somewhat
— Gluten-free items are marked on the main menu
— Not Much
— Average